Zero-ground wire busbar combination device

Abstract

The utility model discloses a zero wire and ground wire busbar combination device, which belongs to the field of electric power industrial control and comprises a zero wire busbar and a ground wire busbar, the zero wire busbar comprises a first conductor bar, the ground wire busbar comprises a second conductor bar, and wiring structures are arranged on the first conductor bar and the second conductor bar. An insulating layer or an insulator is arranged between the zero line busbar and the ground wire busbar. Insulated contact of the zero line busbar and the ground wire busbar is realized through the insulating layer or the insulator, so that the zero line busbar and the ground wire busbar can be overlapped in the power distribution cabinet, and the space utilization rate of the power distribution cabinet and the wiring flexibility of the zero line and the ground wire are improved; and meanwhile, the zero line busbar and the ground wire busbar are provided with wiring structures, so that wiring is convenient, and the wiring stability can be ensured.

Description

Technical Field

[0001] The utility model relates to the field of electric power industrial control, in particular to a zero-ground busbar combination device. Background Art

[0002] In the power industrial control system, the neutral wire and the ground wire are indispensable power equipment and occupy an important position in the power engineering project. At present, the distribution cabinets on the market introduce the neutral bus and the ground bus to realize the neutral and ground bus wiring. The neutral bus centrally connects and distributes the neutral wire in the three-phase power system to ensure the balance and stability of the current; the ground bus provides a common grounding point to ensure the safe grounding of electrical equipment to protect personal safety and equipment from electrical faults. Because the neutral bus and the ground bus are made of conductor materials, the neutral bus and the ground bus are currently installed separately in the distribution cabinet, which is not flexible enough in layout and also reduces the space utilization of the distribution cabinet. In summary, on the basis of ensuring the safe and reliable power supply of the distribution cabinet, how to improve the space utilization of the distribution cabinet is a technical problem that needs to be solved urgently. Utility Model Content

[0003] The utility model aims to overcome the problems of the prior art and provides a zero-ground busbar assembly device.

[0004] The purpose of the utility model is achieved through the following technical solutions: a neutral-ground bus combination device, the combination device includes a neutral bus and a ground bus, the neutral bus includes a first conductor row, the ground bus includes a second conductor row, the first conductor row and the second conductor row are provided with a wiring structure; an insulating layer or insulator is provided between the neutral bus and the ground bus.

[0005] In one example, the neutral bus is gap-connected to the ground bus via an insulator.

[0006] In one example, the insulator includes an insulating body having threaded holes or threaded columns, the first conductor row and the second conductor row are provided with mounting holes, bolts pass through the mounting holes to connect with the threaded holes, or threaded columns pass through the mounting holes to be fixed with nuts.

[0007] In one example, the insulating body is in any one of a cylindrical, truncated cone, and prism shape.

[0008] In one example, the wiring structure is a wiring hole and / or a wiring terminal.

[0009] In one example, the wiring holes are evenly distributed.

[0010] In one example, the insulating layer is any one of a rubber layer, a ceramic layer, a plastic layer, and an asbestos layer; the insulator is any one of a rubber insulator, a ceramic insulator, a plastic insulator, and an asbestos insulator.

[0011] It should be further explained that the technical features corresponding to the above examples can be combined or replaced with each other to form a new technical solution.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] 1. In one example, the insulated contact between the neutral bus and the ground bus is achieved through an insulating layer or an insulator, so that the neutral bus and the ground bus can be overlapped in the distribution cabinet, thereby improving the space utilization of the distribution cabinet and the flexibility of the neutral and ground wiring; at the same time, the neutral bus and the ground bus are provided with a wiring structure, which is convenient for wiring and can ensure the stability of the wiring.

[0014] 2. In one example, the physical gap connection of the neutral-ground bus is achieved through an insulator, which can ensure insulation on the one hand, and reserve wiring space on the other hand, which is convenient for connecting the neutral-ground wire and the neutral-ground bus.

[0015] 3. In one example, the use of an insulator with a threaded structure can achieve a quick fixed connection between the insulator and the neutral-ground busbar, and is easy to disassemble. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The specific implementation methods of the present invention are further described in detail below in conjunction with the accompanying drawings. The accompanying drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The same reference numerals are used in these drawings to represent the same or similar parts. The schematic embodiments of the present application and their descriptions are used to explain the present application and do not constitute improper limitations on the present application.

[0017] Figure 1 A schematic diagram of a combined device provided as an example of the utility model;

[0018] Figure 2 The utility model provides an example of an installation diagram of arranging a combined device in a power distribution cabinet.

[0019] In the figure: neutral bus 1, ground bus 2, insulator 3, wiring structure 4, screw clamping terminal 41, screw winding terminal 42, distribution cabinet 5, incoming cable 6. DETAILED DESCRIPTION

[0020] The technical solution of the utility model is described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] In the description of the present invention, it should be noted that the directions or positional relationships indicated by "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. are based on the directions or positional relationships described in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the use of ordinal numbers (for example, "first and second", "first to fourth", etc.) is to distinguish objects, and is not limited to this order, and cannot be understood as indicating or implying relative importance.

[0022] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0024] In one example, a neutral-ground busbar assembly device provides a neutral and ground connection point for a power distribution circuit, such as Figure 1 As shown, the combined device includes a neutral bus 1 and a ground bus 2. The neutral bus 1 is used to install and connect all neutral wires in the distribution cabinet, and the ground bus 2 is used to install and connect all ground wires in the distribution cabinet. The neutral bus 1 includes a first conductor bar, and the ground bus 2 includes a second conductor bar. The first conductor bar and the second conductor bar are both provided with a wiring structure 4. The first conductor bar and the second conductor bar are preferably copper bars (copper sheets) with strong electrical conductivity, and can also be metal sheets made of good metal conductors such as copper alloys or aluminum.

[0025] Optionally, the wiring structure is a wiring hole and / or a wiring terminal. The wiring hole is a circular hole or a regular polygon hole (N≥6, N is the number of regular polygon sides) that matches the wire diameter of the neutral wire and the ground wire. At this time, it is only necessary to insert the neutral wire and the ground wire into the wiring hole or wrap them around the wiring hole. Preferably, the wiring holes are evenly distributed and much larger than the wire diameters of the neutral wire and the ground wire, which ensures the safety of the wiring on the one hand and the aesthetics of the wiring on the other hand. The wiring terminal can be a screw-type clamping terminal, including a base, the base is mounted on a conductor row (a first conductor row, a second conductor row), a wiring gap is reserved at the lower end of the base, a threaded hole is provided at the upper end of the base, the screw is screwed in through the threaded hole and the bottom of the screw enters the wiring gap, at this time, the neutral wire and the ground wire are inserted into the wiring gap and the screw is tightened so that the screw presses the neutral wire and the ground wire, and a conductor sheet is provided on the side of the wiring gap at the lower end of the base, one end of the conductor sheet is in contact with the screw, and the other end is in contact with the conductor row. Optionally, the terminal block can be a screw-wrap type terminal block, including a screw and a nut. The conductor bar is provided with a corresponding through hole, the through hole diameter is adapted to the screw, the screw passes through the through hole and is fixed to the conductor bar by the nut. At this time, the neutral wire and the ground wire are wound around the screw and fixed and tightened by the nut to achieve the connection between the neutral wire, the ground wire and the neutral wire bus and the ground wire bus.

[0026] Furthermore, an insulating layer or insulator 3 is provided between the neutral bus and the ground bus, that is, the neutral bus and the ground bus are insulated and contacted with each other, and the neutral bus and the ground bus are combined into a whole, saving space in the distribution cabinet. The neutral bus is fixed to the distribution cabinet body through an insulating medium (preferably an insulator), and the ground bus is directly fixed to the distribution cabinet body.

[0027] In this example, the insulated contact between the neutral bus and the ground bus is achieved through an insulating layer or insulator, so that the neutral bus and the ground bus can be overlapped in the distribution cabinet, thereby improving the space utilization of the distribution cabinet and the flexibility of the neutral and ground wiring; at the same time, the neutral bus and the ground bus are provided with a wiring structure, which makes wiring convenient and can ensure the stability of the wiring.

[0028] In one example, the insulating layer is any one of a rubber layer, a ceramic layer, a plastic layer, and an asbestos layer. The insulating layer can be fixed on the conductor row in the neutral bus and the ground bus and a wiring gap can be reserved. Alternatively, after the connection between the neutral wire, the ground wire and the neutral bus and the ground bus is realized, the insulating layer that can accommodate the ground wire and the neutral wire can be fixed. Preferably, the insulating layer is integrally formed and has a wiring gap. At this time, the neutral and ground bus can be combined and installed through the insulating layer.

[0029] In one example, when the neutral bus and the ground bus are overlapped by an insulator combination, a safe physical gap is left between the neutral bus and the ground bus, which can ensure insulation on the one hand and reserve wiring space on the other hand. Preferably, the material of the insulator is any one of rubber, ceramic, plastic, and asbestos.

[0030] In one example, the insulator includes an insulating body, which may be cylindrical, truncated cone, or prismatic. In this example, a truncated cone-shaped insulating body is preferred. Further, a threaded column is provided on the insulating body, and mounting holes are provided on the first conductor row and the second conductor row. Preferably, mounting holes are provided at both ends and / or in the middle of the conductor row, and the threaded column passes through the mounting hole and is fixed to the nut.

[0031] The above examples are combined to obtain a preferred example of the present invention. Figure 2 As shown, at this time, the neutral bus 1 and the ground bus 2 are both provided with screw-clamped terminal blocks 41 (suitable for wires with smaller wire diameters) and screw-wrap-type terminal blocks 42 (suitable for cables with larger wire diameters), and the neutral bus 1 and the ground bus 2 are overlapped up and down through the truncated cone insulator 3, the neutral bus 1 is fixed to the cabinet body of the distribution cabinet 5 through the insulating medium, and the ground bus 2 is directly fixed to the cabinet body of the distribution cabinet 5. At this time, the incoming cable 6 (ground wire, neutral wire) is fixedly connected to the screw-clamped terminal block 41 or the screw-wrap-type terminal block 42, that is, the connection between the neutral wire, the ground wire and the neutral bus 1 and the ground bus 2 is realized, the wiring method is flexible and simple, and the overlapping arrangement of the neutral bus and the ground bus can greatly improve the space utilization rate, improve the flexibility of wiring, and avoid the problem of messy wiring in the cabinet when the neutral wire and the ground wire are arranged separately. Furthermore, the zero-ground busbar combination device of the utility model provides two connection points for the neutral wire and the ground wire at the same time, thereby improving the efficiency of the complete installation of the distribution cabinet, and can also reduce the loss during the laying and installation of multi-core cables and save cost.

[0032] Optionally, the neutral bus 1 and the ground bus 2 may be arranged to overlap vertically via the truncated cone insulator 3. Such vertical overlapping arrangement can improve wiring flexibility and improve space utilization to a certain extent.

[0033] The above specific implementation methods are detailed descriptions of the present utility model. It cannot be determined that the specific implementation methods of the present utility model are limited to these descriptions. For ordinary technicians in the technical field to which the present utility model belongs, they can make several simple deductions and substitutions without departing from the concept of the present utility model, which should be regarded as belonging to the protection scope of the present utility model.

Claims

1. A neutral-ground busbar assembly device, characterized in that: It comprises a neutral bus and a ground bus. The neutral bus comprises a first conductor row, and the ground bus comprises a second conductor row. Wiring structures are arranged on the first conductor row and the second conductor row. An insulating layer or insulator is arranged between the neutral bus and the ground bus.

2. A neutral-ground busbar assembly device according to claim 1, characterized in that: The neutral line bus is gap-connected to the ground line bus via an insulator.

3. The neutral-ground busbar assembly device according to claim 1, characterized in that: The insulator comprises an insulating body, the insulating body is provided with threaded holes or threaded columns, the first conductor row and the second conductor row are provided with mounting holes, bolts pass through the mounting holes to connect with the threaded holes, or the threaded columns pass through the mounting holes to fix with nuts.

4. A neutral-ground busbar assembly device according to claim 3, characterized in that: The insulating body is in any one of a cylindrical, truncated cone, and prism shape.

5. The neutral-ground busbar assembly device according to claim 1, characterized in that: The wiring structure is a wiring hole and / or a wiring terminal.

6. A neutral-ground busbar assembly device according to claim 5, characterized in that: The wiring holes are evenly distributed.

7. The neutral-ground busbar assembly device according to claim 1, characterized in that: The insulating layer is any one of a rubber layer, a ceramic layer, a plastic layer and an asbestos layer; the insulator is any one of a rubber insulator, a ceramic insulator, a plastic insulator and an asbestos insulator.

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